Air conditioning
installation cost in Perth
Air conditioning installation in Perth costs $1,400–$2,250 for a small split system, $2,350–$3,600 for a large living-area split, and $9,000–$15,000 for whole-home ducted, fully installed, with the biggest price swings driven by suburb, housing stock and season.
What will yours cost?
Licensed installers who service your postcode quote your exact job.
What Perth homeowners actually pay
| Job | Installed price | Suits |
|---|---|---|
| 2.5kW split, bedroom, back-to-back install | $1,400–$1,850 | Single bedroom or home office |
| 3.5–5kW split, living room, standard install | $1,950–$2,800 | Apartment living area, medium lounge |
| 7kW split, open-plan living | $2,850–$3,600 | Large open-plan house living zone |
| Ducted, single storey, zoned | $9,000–$12,000 | 3-bed single-storey with roof access |
| Ducted, two storey, zoned | $12,000–$15,000 | 4-bed two-storey family home |
Where you live changes the quote
Timing matters
Same house, same unit, different month, different price.
What the same installed job costs through the year, versus fair shoulder-season pricing.
Perth installation cost FAQs
How much does it cost to install a split system in Perth?
What does ducted air conditioning cost in Perth?
Is it worth replacing evaporative cooling with refrigerated aircon?
When is the cheapest time to install aircon in Perth?
How long does installation take in Perth?
Other areas near Perth
Installers in this part of WA routinely quote across town boundaries, so it is worth knowing what the same job costs nearby. Distances are from the centre of Perth.
Air conditioning by Perth suburb
Cooling demand shifts across Perth, so the size you need and what it costs to run differ by suburb. Each guide works its figures from that suburb's own climate record and electricity network.
- Baldivis
- Canning Vale
- Ellenbrook
- Dianella
- Thornlie
- Morley
- Byford
- Gosnells
- Willetton
- Scarborough
- Piara Waters
- Ballajura
- Wellard
- Landsdale
- Duncraig
- Rockingham
- Aveley
- Bayswater
- Armadale
- Halls Head
- Alkimos
- Como
- Clarkson
- Balga
- Southern River
- Maylands
- Forrestfield
- Nollamara
- Port Kennedy
- Secret Harbour
- Butler
- Maddington
- Yanchep
- East Perth
- South Perth
- Harrisdale
- Yokine
- Kingsley
- Success
- Wembley
- Wanneroo
- Brabham
- Waikiki
- Banksia Grove
- High Wycombe
- Hamilton Hill
- Seville Grove
- Mount Lawley
- Rivervale
- Spearwood
- Nedlands
- East Victoria Park
- Hillarys
- Balcatta
- Warnbro
- Bassendean
- Leeming
- Subiaco
- Meadow Springs
- Beechboro
- Atwell
- Kelmscott
- Stirling
- Fremantle
- Victoria Park
- Greenfields
- Claremont
- Beeliar
- Marangaroo
- North Perth
- Greenwood
- Innaloo
- Huntingdale
- Karrinyup
- Tapping
- Bentley
- Kardinya
- Quinns Rocks
- Mosman Park
- Joondalup
- Beckenham
- Woodvale
- Doubleview
- Girrawheen
- Cloverdale
- Padbury
- Floreat
- Mindarie
- Mount Hawthorn
- Dawesville
- Swan View
- Ocean Reef
- Lesmurdie
- Cottesloe
- Mirrabooka
- Bull Creek
- Caversham
- Tuart Hill
- Queens Park
- Hammond Park
- Noranda
- Sorrento
- Mount Pleasant
- Safety Bay
- Palmyra
- Carramar
- Kewdale
- East Fremantle
- Yangebup
- Aubin Grove
- Alexander Heights
- Applecross
- Westminster
- Darch
- Carine
- Kalamunda
The evap replacement job
Swapping old evaporative cooling for refrigerated ducted is Perth’s signature install. The old ductwork usually can’t be reused, so quote it as a full system, not a swap.
Size for February
Perth summers bring long dry runs near 40°C. Coastal suburbs get the afternoon sea breeze; inland suburbs don’t, and need the extra capacity.
Brick-and-tile keeps ducted sharp
Perth’s single-storey brick-and-tile stock with accessible roof cavities is easy ducted territory, quotes here are often sharper than the east coast.
No WA rebate
There’s no state scheme for aircon in WA. Efficiency is the rebate, the gap between units shows up on every summer bill for ten years.